J/PAZh/24/868 The triple system ADS 9167 (Kiyaeva+, 1998)
The triple system ADS 9167.
Kiyaeva O.V., Tokovinin A.A., Kalinichenko O.A.
<Pis'ma Astron. Zh. 24, 868 (1998)>
=1998PAZh...24..868K 1998PAZh...24..868K (SIMBAD/NED BibCode)
=1998AstL...24..753K 1998AstL...24..753K
ADC_Keywords: Binaries, spectroscopic ; Stars, double and multiple ;
Radial velocities
Abstract:
It is found from the observations with the correlation radial velocity
meter that the primary component of the visual double star ADS 9167 is
a single-lined spectroscopic binary with 2.87- yr period and 0.75
eccentricity. Using the 26-year-long series of Pulkovo photographic
relative-positions observations, a new visual orbit of AB is
calculated with a period of about 1000 years.
Object:
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RA (2000) DE Designation
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14 13 01.02 +55 19 31.5 ADS 9167A = HD 124640
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File Summary:
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File Name Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 39 74 Radial velocities and residuals
table5.dat 81 65 Relative positions and residuals
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Byte-by-byte description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 11 F11.3 d JDH Heliocentric Julian day
14- 19 F6.2 km/s RV Radial velocity
24- 27 F4.2 km/s e_RV Error of radial velocity
31- 35 F5.2 km/s resV ? Residual to orbit (for ADS 9167A only)
37 A1 --- Com [*+:] Comment (1)
39 A1 --- COMP [AB] Component
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Note (1): * - radial velocities derived from the combined A+B trace
+ - A and B are unseparated components
: - rejected in orbit computation
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Byte-by-byte description of file: table5.dat
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Bytes Format Units Label Explanations
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1- 8 F8.3 yr Time Year
11- 15 F5.3 arcsec Rho Separation
18- 21 F4.3 arcsec e_Rho Error of separation
24- 30 F7.3 deg Theta Position angle (Eq. 2000.0)
32- 36 F5.3 deg e_Theta Error of position angle
39- 44 F6.3 arcsec ResRHO1 Residual to orbit I in distance
46- 51 F6.3 arcsec ResTAU1 Residual to orbit I in tangential
53- 58 F6.3 deg ResTHET1 Residual to orbit I in angle
63- 68 F6.3 arcsec ResRHO2 Residual to orbit II in distance
70- 75 F6.3 arcsec ResTAU2 Residual to orbit II in tangential
77- 81 F5.3 deg ResTHET2 Residual to orbit II in angle
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Table 2. Elements of the spectroscopic orbit of ADS 9167 A
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Orbital element Value
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Period P, days 1047.8 ± 5.7
T0, JD 2449490.3 ± 4.7
e 0.754 ± 0.018
w, deg 25.1 ± 2.4
K1, km/s 13.52 ± 0.42
Gamma, km/s -20.48 ± 0.27
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Table 3. Photometry of ADS 9167
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Parameter V B-V Source
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m(A) 8.92 0.86 TYCHO
m(B) 9.22 0.77 TYCHO
m(B)-m(A) 0.35 - HIPPARCOS (DHp)
m(B)-m(A) 0.41 -0.03 1995PAZh...21..523T 1995PAZh...21..523T
m(A+B) 8.34 0.95 This work
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Table 4. Estimated parameters of the components
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Component V B-V SpType Mass MV m-M EW(B-V)
M☉ km/s
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Aa 9.18 0.91 K2V 0.82 6.3 2.9 3.68
Ab 10.58 1.20 K6V 0.71 7.7 2.9 3.75
Aa+Ab 8.92 0.96 - 1.53 - - -
B 9.27 0.90 K2V 0.82 6.3 3.0 3.64
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Table 6. Elements of the visual orbit of ADS 9167 AB
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Element AMP, orbit I AMP, orbit II Hoppman
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Period, year 1283 ±433 1013 ±240 813
Epoch 2169 ±519 2224 ±290 1960
Eccentricity 0.24 ±0.11 0.27 ±0.10 0
Axis, arcsec 3.87 ±0.84 3.56 ±0.55 2.275
Node, deg. 333.3±4.0 336.0 ±3.7 102.6
Long. peri., deg. 200.2±39.4 233.9 ±33.2 0
Inclination, deg. 55.9 ±4.2 58.2±3.7 11.2
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Notes: (1) AMP - orbit computation method, described in
Anovitskii (1980AZh....57.1227K 1980AZh....57.1227K)
(2) Hoppman, 1964AnWie..26...25H 1964AnWie..26...25H
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(End) Veta Avedisova [INASAN] 21-Feb-1999